PETMEX deer antler S is an exceptionally durable chew created especially for adult small breed dogs that need intensive chewing and strong sensations. 100% natural, the antler comes from seasonal deer shedding and contains no artificial additives, preservatives, or dyes. It is completely odorless, making it a convenient choice for indoor use as well. The extremely hard structure of the antler will occupy even the most persistent dog, while supporting oral hygiene and limiting the build-up of tartar. As a natural source of calcium and phosphorus, it supports healthy teeth and bones. Deer, as the sole source of protein, makes it an excellent option for dogs with food allergies as well.